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George Bush Intcntl

$483+ Cheap flights from Portugal to George Bush Intcntl (IAH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAH
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Portugal to George Bush Intcntl

Keep the following information in mind while searching for Portugal to George Bush Intcntl flight deals. Data was last updated October 30, 2025.

Round-trip from

$838
(Delta)

One-way from

$483
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$874
From Portugal to Houston George Bush Intcntl
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One-way flight from Portugal to Houston George Bush Intcntl
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Highest demand for flights based on searches. 11% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Portugal to George Bush Intcntl

Cheapest flights from Portugal to George Bush Intcntl
Explore the most affordable flight options available from Portugal to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:30 amLIS - IAH
1 stop14h 25mDelta
Thu 12/44:05 pmIAH - LIS
1 stop19h 25mDelta
Deal found 10/30$838
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:25 amLIS - IAH
2 stops18h 34mDelta
Sun 11/234:05 pmIAH - LIS
1 stop17h 05mDelta
Deal found 10/29$840
This KLM deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:25 amLIS - IAH
2 stops18h 34mKLM
Sun 11/233:30 pmIAH - LIS
1 stop13h 05mKLM
Deal found 10/30$844
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:05 amLIS - IAH
2 stops27h 37mAmerican Airlines
Sun 11/231:15 pmIAH - LIS
1 stop13h 50mAmerican Airlines
Deal found 10/30$859
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:25 amLIS - IAH
2 stops18h 32mDelta
Sun 11/234:05 pmIAH - LIS
1 stop19h 25mDelta
Deal found 10/30$861
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:00 amLIS - IAH
2 stops22h 11mDelta
Thu 11/205:15 amIAH - LIS
2 stops20h 45mDelta
Deal found 10/30$865
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:05 pmLIS - IAH
3 stops23h 19mMultiple Airlines
Thu 12/45:33 amIAH - LIS
3 stops30h 47mMultiple Airlines
Deal found 10/30$867
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:15 amLIS - IAH
2 stops30h 15mDelta
Sun 11/234:05 pmIAH - LIS
1 stop19h 25mDelta
Deal found 10/30$878
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:25 amLIS - IAH
1 stop32h 05mDelta
Wed 11/193:30 pmIAH - LIS
1 stop13h 05mDelta
Deal found 10/30$879
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:15 amLIS - IAH
2 stops18h 36mUnited Airlines
Wed 11/1912:15 pmIAH - LIS
1 stop16h 00mUnited Airlines
Deal found 10/30$882

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to George Bush Intcntl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Portugal to Houston George Bush Intcntl Airport that are best for you.

Fly from

Portugal

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 11/27

5:30 am-1:55 pm

1 stop14h 25m

Houston George Bush Intcntl

Thu 12/4

4:05 pm-5:30 pm

1 stop19h 25m

$838

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 2/19

10:55 am-11:45 pm

2 stops18h 50m

Houston George Bush Intcntl

Mon 2/23

3:50 pm-12:05 pm

1 stop14h 15m

$843

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

10:55 am-10:24 pm

1 stop17h 29m

Houston George Bush Intcntl

Mon 1/19

3:50 pm-12:05 pm

1 stop14h 15m

$846

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 11/12

11:25 am-1:30 pm

1 stop32h 05m

Houston George Bush Intcntl

Sun 11/23

4:05 pm-5:30 pm

1 stop19h 25m

$855

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 11/11

11:25 am-1:30 pm

1 stop32h 05m

Houston George Bush Intcntl

Sun 11/23

4:05 pm-3:10 pm

1 stop17h 05m

$855

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 2/19

5:00 am-6:45 pm

2 stops19h 45m

Houston George Bush Intcntl

Mon 2/23

12:10 pm-11:30 am

2 stops17h 20m

$857

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 11/10

11:25 am-1:30 pm

1 stop32h 05m

Houston George Bush Intcntl

Thu 11/20

5:30 am-8:00 am

2 stops20h 30m

$859

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 11/22

5:55 pm-6:42 pm

2 stops54h 47m

$490

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 3/14

10:30 am-9:34 pm

1 stop16h 04m

$559

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 11/30

6:40 pm-5:58 pm

2 stops29h 18m

$808

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 11 results
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Best time to book a flight from Portugal to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Portugal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Houston George Bush Intcntl Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Portugal to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portugal to Houston George Bush Intcntl Airport?

    Delta and American Airlines can get you from Portugal to Houston George Bush Intcntl Airport in just under 14h 25m. Your travel time can differ by up to 4h 25m. Portugal and Houston George Bush Intcntl Airport are separated by a distance of 4767 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Portugal to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Portugal to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to George Bush Intcntl.

  • Can I find deals for business class flights from Portugal to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Portugal to George Bush Intcntl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Katy
The Woodlands
Jersey Village
Spring
Humble
Conroe
Tomball
Cypress

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